December, ’24] 
CHAMBERLIN: ALFALFA WEEVIL PARASITES 
629 
pupae. From one to six parasites have been reared to maturity upon a 
single host. This is probably the most important of the prepupal and 
pupal parasites in Europe, but owing to the variability in effectiveness of 
different parasites from year to year, it is difficult to make sure of this. 
It was taken in 1922 and 1923 from Hyeres, Tournon, and Lons-le- 
Saunier, in France, and from points around. Naples, in Italy. It is 
parasitized to a small extent by a eulophid, Pleurotropis sp., which in 
the laboratory oviposits in the pupae of D. dynastes but not in the larvae. 
Necremnus Leucarthros (Nees) 
We have reared and bred upon Pkytonomus prepupae a eulophid 
parasite which appears to be Necremnus leucarthros (Nees). On Phyto- 
nomus hosts, the habits of the insect are similar to those of Dibrachoides 
dynastes. In the laboratory as many as 41 eggs have been laid upon a 
single host but only a few of these matured. As many as 18 well de¬ 
veloped adults have been secured from a single prepupa. No secondary 
parasites have been reared from it. The species was taken from material 
from the country near Naples in Italy and from Tournon and the high 
regions about Chambery in France. 
Parasites of the Subfamily Cryptinae 
The recorded parasites belonging to the subfamily Cryptinae, Aeno- 
plegimorpha micator (Grav.), Hemiteles graculus (Grav.), and Spilo - 
cryptus pumilis Kriechb., have not proven very important in our ex¬ 
perience. In Europe in 1923, when most of the parasites of the sub¬ 
family Cryptinae were found, H. graculus and an undetermined para¬ 
site belonging to the tribe Gelini were the only members of "the sub¬ 
family Cryptinae which were found in any considerable numbers. 
H . graculus was more common in Italian material in 1923 than in 1913, 
but even then rare. In our experience H. graculus bred freely in the 
laboratory and was reared from egg to adult in 15 days in June. In 
addition to the parasites of this subfamily mentioned above two other 
species have been found in cocoon material but it has not been proven 
whether they are primary or secondary. These are Spilocryptus sp. 
and Plemiteles sp. 
Practically all the parasites belonging to the subfamily Cryptinae 
studied in 1922 and 1923 came from Italy near Naples. 
Itoplectis maculator (Fab.) 
This is an internal ichneumonine parasite of the prepupae and pupae of 
Phytonomus. The writer has been able to obtain only a few undersized 
specimens of the species by breeding in the laboratory, but it undoubted- 
